Description
Woodward TG17
Technical Specifications
- System Type: Mechanical-hydraulic droop governor.
- Oil Supply: Self-contained, independent oil system.
- Application: Small steam turbines.
Functional Features
- Self-Regulating: Automatically adjusts fuel/steam input in response to load changes to maintain a stable droop speed.
- Standalone Design: Eliminates the need for external control oil systems or electronic controllers.
- Proven Reliability: Time-tested mechanical design suitable for continuous industrial duty.
Application Scenarios
Widely used in industrial facilities, marine auxiliary drives, and small power generation units utilizing small steam turbines.
Performance Parameters
- Maximum Shaft Rotation: 40 degrees.
- Operational Stroke: Recommended 2/3 of total travel for optimal no-load to full-load control.
Material Composition
Heavy-duty metallurgy for internal hydraulic passages, precision-ground shafts, and durable elastomeric seals to prevent internal leakage.
Structural Characteristics
- Integrated Reservoir: Built-in oil sump simplifies installation and reduces external piping.
- Mechanical Linkage: Direct output shaft for connecting to turbine throttle valves.
Working Principle
Operates on a force-balance principle where centrifugal flyweights react to speed changes. This mechanical movement actuates a hydraulic servo system that amplifies the force to reposition the turbine’s steam control valve, maintaining the set speed with a defined droop.
Installation Requirements
Ensure rigid mounting to prevent vibration-induced wear. Linkage connections must be properly aligned to avoid side-loading the output shaft.
Precautions for Use
Adhere to recommended oil change intervals. Inspect mechanical linkages periodically for wear and ensure all pivot points are properly greased.
